Effects of Fe concentration on properties of ZnO nanostructures and their application to photocurrent generation

Selloum, Djamel; Henni, Abdellah; Karar, Amina; Tabchouche, Ahmed; Harfouche, Nesrine; Bacha, O.; Tingry, Sophie; Rosei, Federico

doi:10.1016/j.solidstatesciences.2019.03.006

Cited by 33 publications

(12 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interestingly, the bandgap can be modified by a shift in the absorption edge and variations in carrier concentration. According to Burstein-Moss effect, when the states close to the conduction band of a semiconductor get populated, its absorption edge is pushed to higher energies leading to increased band gap [21].…”

Section: Resultsmentioning

confidence: 99%

Comparative studies on the morphological, structural and optical properties of NiO thin films grown by vacuum and non-vacuum deposition techniques

Jamal

Chowdhury

Bajgai

et al. 2021

Mater. Res. Express

View full text Add to dashboard Cite

The structural and optical characteristics of Nickel oxide thin films (NiOTF) formed on the soda-lime glass substrate (SLG) under vacuum and non-vacuum conditions are investigated in this work. The difference between RFMS (Radio Frequency Magnetron Sputtering; vacuum) and SP (spray pyrolysis; non-vacuum) was helpful in the development of NiOTF. Deposited films data for this study were characterized by using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), scanning probe microscopy (SPM), and optical spectrophotometer. Structural studies disclosed that NiOTF developed via RFMS technique was more uniform with large crystals and lower surface roughness in contrast to that of developed via SP technique. Transmittance spectrum divulged that the transmittance of spray pyrolyzed NiO films are ~10% less than that of ones produced by RFMS. Urbach energy analysis of NiOTF developed by RFMS and SP affirmed the findings of structural studies.

show abstract

Section: Resultsmentioning

confidence: 99%

Comparative studies on the morphological, structural and optical properties of NiO thin films grown by vacuum and non-vacuum deposition techniques

Jamal

Chowdhury

Bajgai

et al. 2021

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…XRD spectra as shown in Figure 4 can be interpreted that crystal structures are hexagonal wurtzite for ZnO and the nanocomposites according to the JCPDS card no. 36-1451 [14,15]. However, the peak width and intensity are differences between ZnO and the nanocomposites.…”

Section: Resultsmentioning

confidence: 99%

Incorporation of Fe and Cu for antibacterial performance enhancement of Fe-Cu-ZnO nanocomposites synthesized by a facile chemical precipitation

Krobthong

Wongrerkdee

2020

J Met Mater Miner

View full text Add to dashboard Cite

Fe-Cu-ZnO nanocomposites were synthesized using simple chemical precipitation under a violent stirring condition, and characterized by dynamic light scattering, ultraviolet-visible spectroscopy, scanning electron microscopy, X-ray diffractometry, Raman spectroscopy, and vibrating sample magnetometer. The particle size distribution is observed not only a large size of 100 nm to 2 mm, but also a small size of 0.4-5.0 nm. The absorbance peaks of the nanocomposites exhibit a small blue shift in comparison with ZnO. Surface defects are explored in the nanocomposites including irregular shapes, rough surfaces, and aggregation. The nanocomposites and ZnO have similar hexagonal wurtzite structures. However, the nanocomposites have more crystal defects than ZnO due to ZnFe2O4 formation. Although the presence of zinc ferrite (ZnFe2O4) is also detected, magnetic hysteresis is disappeared because of poor ZnFe2O4 distribution and critical size effects. In antibacterial test, the nanocomposites were applied to inhibit the growth of Xanthomonas campestris, Pseudomonas aeruginosa, and Pseudomonas fluorescens. It is found that antibacterial performance is enhanced relating to surface and crystal defects. These defects are possible to increase interfacial contacts and accelerate antibacterial activities for the antibacterial enhancement. Therefore, the Fe-Cu-ZnO nanocomposites are alternative potential material appropriately for bacterial inhibition application.

show abstract

“…The latter is interesting because it is inexpensive, achievable at low temperatures, allows modulating the morphology of ZnO (thin layers or high-quality nanostructures) by adjusting the deposition parameters (potential, current density, bath temperature and precursor concentration [25]). In addition, several literature studies have confirmed that doping ZnO nanocrystals with an adequate amount of Mg, Ni, Al , Fe and Cu [26][27][28][29][30][31], modifies its electrical, magnetical and optical properties. In particular, Cu is considered an interesting dopant due to its low cost and its many chemical and physical characteristic similar to those of Zn due to the similarity of its electronic structure, leading to the replacement of Zn by Cu in the low-energy ZnO lattice [32].…”

Section: Introductionmentioning

confidence: 94%

Gradient doping of Cu(I) and Cu(II) in ZnO nanorod photoanode by electrochemical deposition for enhanced photocurrent generation

Nouasria

Selloum

Henni

et al. 2021

Ceramics International

Self Cite

View full text Add to dashboard Cite

Effects of Fe concentration on properties of ZnO nanostructures and their application to photocurrent generation

Cited by 33 publications

References 39 publications

Comparative studies on the morphological, structural and optical properties of NiO thin films grown by vacuum and non-vacuum deposition techniques

Comparative studies on the morphological, structural and optical properties of NiO thin films grown by vacuum and non-vacuum deposition techniques

Incorporation of Fe and Cu for antibacterial performance enhancement of Fe-Cu-ZnO nanocomposites synthesized by a facile chemical precipitation

Gradient doping of Cu(I) and Cu(II) in ZnO nanorod photoanode by electrochemical deposition for enhanced photocurrent generation

Contact Info

Product

Resources

About